Clean Water Act discharge permit · NPDES MTX000125
SUN MOUNTAIN LUMBER INC, Deer Lodge, MT: NPDES MTX000125 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 14Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
SUN MOUNTAIN LUMBER INC holds NPDES permit MTX000125, which discharges to State Groundwater. EPA’s file records it issued September 1, 2016 and expiring September 30, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | SUN MOUNTAIN LUMBER INC |
|---|---|
| Permittee as filed | SUN MOUNTAIN LUMBER INC |
| NPDES ID | MTX000125 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | State-issued individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 1, 2016 |
| Expiration date | September 30, 2021 |
| Address | Deer Lodge, MT 59722 |
| Receiving water | STATE GROUNDWATER |
| Subwatershed | Last Chance Gulch (HUC 100301011309) |
| Other EPA IDs (FRS) | ICIS-AIR source MT0000003007700002 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 28Pollutants on file
- 14Under a numeric limit
- 28With a violation of any kind
- 7With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Arsenic, dissolved [as As] | 6 | 35 | 27 | June 30, 2023 | 62,400% over the limit |
| Iron, dissolved [as Fe] | 0 | 26 | 22 | September 30, 2016 | 2,930% over the limit |
| pH | 4 | 18 | 13 | September 30, 2016 | |
| Sulfate [as S] | 0 | 16 | 13 | March 31, 2014 | 176% over the limit |
| Solids, total dissolved | 7 | 20 | 10 | June 30, 2022 | 13,820% over the limit |
| Chloride [as Cl] | 4 | 16 | 8 | March 31, 2016 | 1,920% over the limit |
| Manganese, dissolved [as Mn] | 0 | 11 | 7 | December 31, 2014 | 144% over the limit |
| Fluoride, total [as F] | 6 | 10 | 0 | ||
| Water level at sample collection time | 2 | 10 | 0 | ||
| Copper, dissolved [as Cu] | 4 | 7 | 0 | ||
| Nitrite + Nitrate total [as N] | 6 | 6 | 0 | ||
| Aluminum, dissolved [as Al] | 4 | 5 | 0 | ||
| Manganese, total [as Mn] | 0 | 5 | 0 | ||
| Aluminum, total [as Al] | 0 | 5 | 0 | ||
| Nitrogen, total [as N] | 6 | 3 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 6 | 3 | 0 | ||
| Specific conductance | 4 | 3 | 0 | ||
| Zinc, dissolved [as Zn] | 4 | 3 | 0 | ||
| Conductivity | 0 | 3 | 0 | ||
| Oil and grease, hexane extr method | 0 | 3 | 0 | ||
| Phosphorus, total [as P] | 0 | 3 | 0 | ||
| Arsenic, total [as As] | 0 | 3 | 0 | ||
| Copper, total [as Cu] | 0 | 3 | 0 | ||
| Iron, total [as Fe] | 0 | 3 | 0 | ||
| Temperature, water deg. centigrade | 0 | 2 | 0 | ||
| Depth, max of sample | 0 | 2 | 0 | ||
| Solids, total dissolved [TDS] | 0 | 2 | 0 | ||
| Flow rate | 2 | 1 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 23, 2023 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| May 23, 2023 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| October 27, 2017 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
| October 27, 2017 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MTX000125.
Start the watch
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- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID MTX000125 there.
Nearby on the register
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- Every permit record in Deer Lodge, A to Z
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- Every permit record in Montana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.